Mothers of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, take care their children in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

Four-year-old girls of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, play in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

Members of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, walk in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

Men of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, carry their offerings before departing for a venue about 40 km away for their traditional harvest thanksgiving ceremony in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

A woman of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, stand at a door in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

Mothers of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, walk in Kanekes, Banten province on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

Men of the Baduy ethnic group, known for maintaining ancestral customs and the limited use of modern technology, walk to a venue for their traditional harvest thanksgiving ceremony after traveling about 40 km from their village in Aweh, Banten, on April 24, 2026. The Baduy people are an indigenous community in western Java, divided into the Inner Baduy, who wear white and follow stricter traditional customs, and the Outer Baduy, who typically wear dark clothing and have more interaction with the outside world. (Photo by YASUYOSHI CHIBA / AFP via Getty Images)

A researcher weighs out nickel powder as he demonstrates the production process of a new plastic-like biomaterial derived from shrimp shells at the Institute for Bioengineering of Catalonia (IBEC) in Barcelona on April 24, 2026. This innovative material, developed from shrimp shells and reinforced with nickel, mimics the functional properties of plastic while offering high resistance to water. Researchers at the center suggest this breakthrough marks the beginning of a new era of biological materials capable of replacing single-use plastics with natural, sustainable alternatives. (Photo by Josep LAGO / AFP via Getty Images)